/**
 ***********************************************************************
 * Program name: StringUtil.java<br>
 * Program description: TODO<br>
 * Author: sugen<br>
 * Revision history:1.0<br>
 * <br>
 * Description of Change	Programmer		Date<br>
 * ---------------------    ----------      ----<br>
 * Initial creation			Su Gen		   2011-3-9 <br>
 * <br>
 * Copyright (c) 2011 by SUGEN ALL RIGHTS RESERVED<br>
 ************************************************************************
 */
package com.common;

public final class StringUtil extends org.apache.commons.lang.StringUtils {

	public static boolean checkIsNull(String str) {
		if (str == null || "".equals(str.trim()) || "null".equals(str))
			return true;
		else
			return false;
	}

}


